1.
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11 p, 6.0 MB |
A pre-time-zero spatiotemporal microscopy technique for the ultrasensitive determination of the thermal diffusivity of thin films
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Varghese, Sebin (Institut Català de Nanociència i Nanotecnologia) ;
Mehew, Jake Dudley (Institut Català de Nanociència i Nanotecnologia) ;
Block, Alexander (Institut Català de Nanociència i Nanotecnologia) ;
Saleta Reig, David (Institut Català de Nanociència i Nanotecnologia) ;
Woźniak, Pawel (Institut de Ciències Fotòniques) ;
Farris, Roberta (Institut Català de Nanociència i Nanotecnologia) ;
Zanolli, Zeila (Utrecht University) ;
Ordejon, Pablo (Institut Català de Nanociència i Nanotecnologia) ;
Verstraete, Matthieu J. (Université de Liège) ;
van Hulst, Niek F.. (Institut de Ciències Fotòniques) ;
Tielrooij, Klaas-Jan (Institut Català de Nanociència i Nanotecnologia)
Diffusion is one of the most ubiquitous transport phenomena in nature. Experimentally, it can be tracked by following point spreading in space and time. Here, we introduce a spatiotemporal pump-probe microscopy technique that exploits the residual spatial temperature profile obtained through the transient reflectivity when probe pulses arrive before pump pulses. [...]
2023 - 10.1063/5.0102855
Review of Scientific Instruments, Vol. 94, Issue 3 (March 2023) , art. 34903
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2.
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6 p, 1.2 MB |
Electrical control of spin-polarized topological currents in monolayer WTe2
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Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ;
You, Jinxuan (Universitat Autònoma de Barcelona. Departament de Física) ;
García-Mota, Mónica (Simune Atomistics S.L.) ;
Koval, Peter (Simune Atomistics S.L.) ;
Ordejon, Pablo (Institut Català de Nanociència i Nanotecnologia) ;
Cuadrado, Ramón (Institut Català de Nanociència i Nanotecnologia) ;
Verstraete, Matthieu J. (Université de Liège. Complex and Entangled Systems from Atoms to Materials) ;
Zanolli, Zeila (Institut Català de Nanociència i Nanotecnologia) ;
Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
We evidence the possibility for coherent electrical manipulation of the spin orientation of topologically protected edge states in a low-symmetry quantum spin Hall insulator. By using a combination of ab initio simulations, symmetry-based modeling, and large-scale calculations of the spin Hall conductivity, it is shown that small electric fields can efficiently vary the spin textures of edge currents in monolayer 1T'-WTe2 by up to a 90-degree spin rotation, without jeopardizing their topological character. [...]
2022 - 10.1103/PhysRevB.106.L161410
Physical review B, Vol. 106, issue 16 (Oct. 2022) , art. L161410
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3.
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4.
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9 p, 2.0 MB |
Unraveling heat transport and dissipation in suspended MoSe2 from bulk to monolayer
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Saleta Reig, David (Institut Català de Nanociència i Nanotecnologia) ;
Varghese, Sebin (Institut Català de Nanociència i Nanotecnologia) ;
Farris, Roberta (Institut Català de Nanociència i Nanotecnologia) ;
Block, Alexander (Institut Català de Nanociència i Nanotecnologia) ;
Mehew, Jake D. (Institut Català de Nanociència i Nanotecnologia) ;
Hellman, Olle (Weizmann Institute of Science (Israel). Department of Molecular Chemistry and Materials Science) ;
Woźniak, Pawel (Institut de Ciències Fotòniques) ;
Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ;
Sachat, Alexandros el (Institut Català de Nanociència i Nanotecnologia) ;
Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ;
Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia) ;
van Hulst, Niek F.. (Institut de Ciències Fotòniques) ;
Ordejon, Pablo (Institut Català de Nanociència i Nanotecnologia) ;
Zanolli, Zeila (Debye Institute for Nanomaterials Science) ;
Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ;
Verstraete, Matthieu J. (European Theoretical Spectroscopy Facility) ;
Tielrooij, Klaas-Jan (Institut Català de Nanociència i Nanotecnologia)
Understanding heat flow in layered transition metal dichalcogenide (TMD) crystals is crucial for applications exploiting these materials. Despite significant efforts, several basic thermal transport properties of TMDs are currently not well understood, in particular how transport is affected by material thickness and the material's environment. [...]
2022 - 10.1002/adma.202108352
Advanced materials, Vol. 34, issue 10 (March 2022) , art. 2108352
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5.
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6.
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11 p, 4.3 MB |
Hot-carrier cooling in high-quality graphene is intrinsically limited by optical phonons
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Pogna, Eva A. A. (Politecnico di Milano. Dipartimento di Fisica) ;
Jia, Xiaoyu (Max-Planck-Institut für Polymerforschung) ;
Principi, Alessandro (University of Manchester. School of Physics and Astronomy) ;
Block, Alexander (Institut Català de Nanociència i Nanotecnologia) ;
Banszerus, Luca (RWTH Aachen University) ;
Zhang, Jincan (Beijing Graphene Institute) ;
Liu, Xiaoting (Beijing Graphene Institute) ;
Sohier, Thibault (Université de Liège. CESAM) ;
Forti, Stiven (Center for Nanotechnology Innovation (Pisa, Itàlia)) ;
Soundarapandian, Karuppasamy (Institut de Ciències Fotòniques) ;
Terrés, Bernat (Institut de Ciències Fotòniques) ;
Mehew, Jake D. (Institut Català de Nanociència i Nanotecnologia) ;
Trovatello, Chiara (Politecnico di Milano. Dipartimento di Fisica) ;
Coletti, Camilla (Center for Nanotechnology Innovation (Pisa, Itàlia)) ;
Koppens, Frank (Institució Catalana de Recerca i Estudis Avançats) ;
Bonn, Mischa (Max-Planck-Institut für Polymerforschung) ;
Wang, Hai I. (Max-Planck-Institut für Polymerforschung) ;
van Hulst, Niek F.. (Institució Catalana de Recerca i Estudis Avançats) ;
Verstraete, Matthieu J. (Université de Liège. CESAM) ;
Peng, Hailin (Beijing Graphene Institute) ;
Liu, Zhongfan (Beijing Graphene Institute) ;
Stampfer, Christoph (RWTH Aachen University) ;
Cerullo, Giulio (Politecnico di Milano. Dipartimento di Fisica) ;
Tielrooij, Klaas-Jan (Institut Català de Nanociència i Nanotecnologia)
Many promising optoelectronic devices, such as broadband photodetectors, nonlinear frequency converters, and building blocks for data communication systems, exploit photoexcited charge carriers in graphene. [...]
2021 - 10.1021/acsnano.0c10864
ACS nano, Vol. 15, issue 7 (July 2021) , p. 11285-11295
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7.
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17 p, 380.6 KB |
TB2J : a python package for computing magnetic interaction parameters
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He, Xu (Institut Català de Nanociència i Nanotecnologia) ;
Helbig, Nicole (Université de Liège. Q-Mat) ;
Verstraete, Matthieu J. (Institut Català de Nanociència i Nanotecnologia) ;
Bousquet, Eric (Université de Liège. Q-Mat)
We present TB2J, a Python package for the automatic computation of magnetic interactions, including exchange and Dzyaloshinskii-Moriya, between atoms of magnetic crystals from the results of density functional calculations. [...]
2021 - 10.1016/j.cpc.2021.107938
Computer Physics Communications, Vol. 264 (July 2021) , art. 107938
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9.
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27 p, 1.9 MB |
ABINIT : overview and focus on selected capabilities
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Romero, Aldo (West Virginia University. Physics and Astronomy Department) ;
Allan, Douglas (Corning Incorporated) ;
Amadon, Bernard (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Antonius, Gabriel (Université du Québec À Trois-Rivières) ;
Applencourt, Thomas (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Baguet, Lucas (Sorbonne Université) ;
Bieder, Jordan (Université de Liège) ;
Bottin, François (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Bouchet, Johann (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Bousquet, Eric (Université de Liège) ;
Bruneval, Fabien (Université Paris-Saclay) ;
Brunin, Guillaume (Institute of Condensed Matter and Nanoscience. UCLouvain) ;
Caliste, Damien (University Grenoble Alpes) ;
Côté, Michel (U. de Montréal) ;
Denier, Jules (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Dreyer, Cyrus (Center for Computational Quantum Physics. Flatiron Institute) ;
Ghosez, Philippe (Université de Liège) ;
Giantomassi, Matteo (European Theoretical Spectroscopy Facility) ;
Gillet, Yannick (Institute of Condensed Matter and Nanoscience. UCLouvain) ;
Gingras, Olivier (U. de Montréal) ;
Hamann, Donald R. (Mat-Sim Research LLC) ;
Hautier, Geoffroy (Institute of Condensed Matter and Nanoscience. UCLouvain) ;
Jollet, François (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Jomard, Gérald (CEA. DEN. DEC) ;
Martin, Alexander (Université de Liège) ;
Miranda, Henrique P. C. (Institute of Condensed Matter and Nanoscience. UCLouvain) ;
Naccarato, Francesco (Institute of Condensed Matter and Nanoscience. UCLouvain) ;
Petretto, Guido (Institute of Condensed Matter and Nanoscience. UCLouvain) ;
Pike, N. A. (Université de Liège) ;
Planes, Valentin (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Prokhorenko, Sergei (Université de Liège) ;
Rangel, Tonatiuh (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Ricci, Fabio (Université de Liège) ;
Rignanese, Gian-Marco (European Theoretical Spectroscopy Facility) ;
Royo Valls, Miquel (Institut de Ciència de Materials de Barcelona) ;
Stengel, Massimiliano (Institut de Ciència de Materials de Barcelona) ;
Torrent, Marc (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Van Setten, Michiel J. (IMEC) ;
Van Troeye, Benoit (Rensselaer Polytechnic Institute) ;
Verstraete, Matthieu J. (Institut Català de Nanociència i Nanotecnologia) ;
Wiktor, Julia (Chalmers University of Technology) ;
Zwanziger, J. W. (Dalhousie Univeristy) ;
Gonze, Xavier (Skolkovo Institute of Science and Technology)
ABINIT is probably the first electronic-structure package to have been released under an open-source license about 20 years ago. It implements density functional theory, density-functional perturbation theory (DFPT), many-body perturbation theory (GW approximation and Bethe-Salpeter equation), and more specific or advanced formalisms, such as dynamical mean-field theory (DMFT) and the "temperature-dependent effective potential" approach for anharmonic effects. [...]
2020 - 10.1063/1.5144261
Journal of chemical physics, Vol. 152, Issue 12 (March 2020) , art. 124102
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10.
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31 p, 9.5 MB |
Low-Energy Phases of Bi Monolayer Predicted by Structure Search in Two Dimensions
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Singh, Sobhit (Rutgers University. Department of Physics and Astronomy) ;
Zanolli, Zeila (Institut Català de Nanociència i Nanotecnologia) ;
Amsler, Maximilian (Cornell University) ;
Belhadji, Brahim (Université de Liège) ;
Sofo, Jorge O. (Pennsylvania State University) ;
Verstraete, Matthieu J. (Institut Català de Nanociència i Nanotecnologia) ;
Romero, Aldo (West Virginia University. Physics and Astronomy Department)
We employ an ab-initio structure search algorithm to explore the configurational space of bismuth in quasi-two dimensions. A confinement potential is introduced to restrict the movement of atoms within a predefined thickness to find the stable and metastable forms of monolayer Bi. [...]
2019 - 10.1021/acs.jpclett.9b03043
Journal of physical chemistry letters, Vol. 10, Issue 23 (December 2019) , p. 7324-7332
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